Finasteride works by inhibiting the enzyme 5α-reductase, which converts testosterone into dihydrotestosterone (DHT). High DHT levels contribute significantly to hair loss in men with androgenetic alopecia. By reducing DHT, finasteride helps slow or stop hair loss and, in some cases, promotes hair regrowth.
Common side effects are generally mild and temporary. These include decreased libido, erectile dysfunction, and ejaculation disorders. The incidence of these side effects varies, but studies suggest they affect a minority of users. Importantly, most side effects resolve upon cessation of treatment.
Less frequent side effects can include breast tenderness or enlargement (gynecomastia), and depression. While rare, these warrant immediate medical attention. Always discuss any concerns or unusual symptoms with your doctor.
Before starting finasteride, a thorough medical history review is recommended. This is particularly important for men with pre-existing conditions such as prostate cancer or liver disease. Regular monitoring by your physician is advisable to assess treatment efficacy and identify any potential adverse effects promptly.
Finasteride is a prescription medication. Only obtain it from a licensed healthcare professional. They can assess your individual risk factors and provide guidance on appropriate usage and potential side effects specific to your situation.
